The Human Herpesvirus 6 U100 Gene Product Is the Third Component of the gH-gL Glycoprotein Complex on the Viral Envelope

The Human Herpesvirus 6 U100 Gene Product Is the Third Component of the gH-gL Glycoprotein Complex on the Viral Envelope
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人类疱疹病毒6 U100基因产物是病毒包膜上gH-gL糖蛋白复合物的第三个成分

DOI:
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发表时间:
2003
影响因子:
5.4
通讯作者:
K. Yamanishi
K. Yamanishi
中科院分区:
医学2区
文献类型:
--
作者:
Y. Mori;Pilailuk Akkapaiboon;Xuwei Yang;K. Yamanishi

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摘要人类疱疹病毒6型(HHV-6)变异体A U100基因编码糖蛋白H(Gh)-糖蛋白L(Gl)复合体的第三组分。糖苷酶分析表明,U100基因产物是由80 kDa蛋白和74 kDa蛋白组成的糖蛋白,前者含有复杂的N-连接寡糖,后者含有未成熟的高甘露糖N-连接低聚糖。根据这些特性,我们将U100基因产物命名为糖蛋白Q(GQ)。只有80 kDa的Gq与抗Gh抗体共沉淀,提示80 kDa的Gq蛋白与HHV-6感染细胞中的Gh-gl复合体有关。此外,在纯化的病毒粒子中检测到该复合体,表明它可能在病毒进入过程中发挥重要作用。
ABSTRACT The human herpesvirus 6 (HHV-6) variant A U100 gene encodes the third component of the glycoprotein H (gH)-glycoprotein L (gL)-containing complex. Glycosidase digestion analysis showed that the U100 gene products are glycoproteins consisting of an 80-kDa protein with complex N-linked oligosaccharides and a 74-kDa protein with immature, high-mannose N-linked oligosaccharides. Based on these characteristics, we designated the U100 gene products glycoprotein Q (gQ). Only the 80-kDa form of gQ was coimmunoprecipitated with an anti-gH antibody, suggesting that the 80-kDa protein associates with the gH-gL complex in HHV-6-infected cells. Furthermore, the complex was detected in purified virions, suggesting that it may play an important role in viral entry.
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发表时间: 1995
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